TY - JOUR
T1 - Janus Metal-AIEgen Framework@Hydrogel Patch for Ultrasensitive, Multivariate Responsive, and Intelligent Point-Of-Care Sensors
AU - Hu, Chen
AU - Liang, Axin
AU - Du, Shujie
AU - Gao, Nana
AU - Feng, Niu
AU - Li, Ying
AU - Zheng, Guanghui
AU - Fu, Rongxin
AU - Zhang, Shuailong
AU - Wang, Dou
AU - Luo, Aiqin
AU - Chen, Yiping
AU - Zhang, Jiangjiang
N1 - Publisher Copyright:
© 2025 American Chemical Society
PY - 2026/1/13
Y1 - 2026/1/13
N2 - Point-of-care testing (POCT) techniques showcase convenience, low cost, and broad applications in public security and laboratory medicine. Hydrogel-based POCT has drawn great interest because of its improved stability and interference resistance. Here, we synthesize high quantum yield metal-AIEgen frameworks (MAFs) and explore stacking heterogeneous hydrogel thin film complexes to prepare a Janus BP@GA hydrogel patch for multianalyte and ultrasensitive intelligent POCT sensors. The aqueous swelling difference renders the Janus hydrogel patch with physical self-sorting behavior for image-based digital recognition. Combined with the fluorescence encoding capacity of MAFs, the Janus BP@GA hydrogel patch achieves fast digital sensing of multianalytes based on customized mobile app-actuated image recognition arithmetic, for example, the intelligent determination of four halide ions. Owing to excellent sensing performance, we develop the BP hydrogel patch coupling with a nonenzymic dual cascade amplification system (H2O2–I–) for ultrasensitive pathogen detection. The limit of detection is 3 CFU/mL for Staphylococcus aureus, staying at the same level compared with enzymic nucleic acid tests but over 100 times more sensitive than other chromogenic/fluorimetric sensors. Clinical bacterial strain tests showed 100% accuracy (n = 28). Fluorescent MAF@hydrogel patch-based ultrasensitive and intelligent digital sensing represents a powerful and convenient POCT platform for developing multiplex and ultrasensitive biochemical sensors from ions to cells.
AB - Point-of-care testing (POCT) techniques showcase convenience, low cost, and broad applications in public security and laboratory medicine. Hydrogel-based POCT has drawn great interest because of its improved stability and interference resistance. Here, we synthesize high quantum yield metal-AIEgen frameworks (MAFs) and explore stacking heterogeneous hydrogel thin film complexes to prepare a Janus BP@GA hydrogel patch for multianalyte and ultrasensitive intelligent POCT sensors. The aqueous swelling difference renders the Janus hydrogel patch with physical self-sorting behavior for image-based digital recognition. Combined with the fluorescence encoding capacity of MAFs, the Janus BP@GA hydrogel patch achieves fast digital sensing of multianalytes based on customized mobile app-actuated image recognition arithmetic, for example, the intelligent determination of four halide ions. Owing to excellent sensing performance, we develop the BP hydrogel patch coupling with a nonenzymic dual cascade amplification system (H2O2–I–) for ultrasensitive pathogen detection. The limit of detection is 3 CFU/mL for Staphylococcus aureus, staying at the same level compared with enzymic nucleic acid tests but over 100 times more sensitive than other chromogenic/fluorimetric sensors. Clinical bacterial strain tests showed 100% accuracy (n = 28). Fluorescent MAF@hydrogel patch-based ultrasensitive and intelligent digital sensing represents a powerful and convenient POCT platform for developing multiplex and ultrasensitive biochemical sensors from ions to cells.
UR - https://www.scopus.com/pages/publications/105027269014
U2 - 10.1021/acs.analchem.5c05928
DO - 10.1021/acs.analchem.5c05928
M3 - Article
AN - SCOPUS:105027269014
SN - 0003-2700
VL - 98
SP - 860
EP - 873
JO - Analytical Chemistry
JF - Analytical Chemistry
IS - 1
ER -